The wife and I were married in Lake Tahoe way back in 1988. I was there once since then but it was still a long time ago. I skied Mount Heavenly and that was cool. Besides skiing and gambling I couldn't give you a hint upon what to do.

My future wife and I went for a weekend almost 10 years ago and stayed at Harrah’ in South Lake Tahoe. We were in a tower and had a room looking out over the lake. It was spectacular and I just enjoyed sitting in the room looking at the view.

My recommendation would be to try and go just a little later and also squeeze in two days a little further south in Lee Vining or Bridgeport where you can see Yosemite when the aspen are turning. Driving up Tioga pass that time of year is very scenic. Bridgeport has some fantastic hot springs that are really neat. Lots of travertine formations you can walk around. The eastern Sierra has quite a few hot springs if you are into that sort of thing.

You might get bored after a whole week at Tahoe so maybe a side trip to Yosemite would break it up a little. Mid-September should be just about peak time for fall colors.